Antique & Scientific Instruments U.K.

 

 

ANTIQUE SURVEYING INSTRUMENTS  for sale  

 

   

A fine antique mining dial/theodolite in its original fitted mahogany case, engraved on the silver compass dial JOHN DAVIS & SON, (DERBY) Ltd, and with the serial number 4342, in its original case. The horizontal silver compass has a thumbscrew needle clamp, is scaled 0 360 degrees on the outside, has four 0 90 degree scales on the inside and a pair of working bubble levels inset.  The instrument has a thumbwheel underneath with which to turn the dial horizontally, a clamping screw to fix the horizontal position, a fine position control and a silvered vernier on the side of the compass box for accurate reading. The instrument is fitted with a vertical dial (effectively making it a mining theodolite). It comes with its original case, which has brass clips & hinges. The instrument is in good condition with lots of original lacquer left and makes a very impressive display as well as being a rare working antique instrument - 395

 

 

   BOOKS

The World's Minerals (with 40 colored plates) by L.J.Spencer - 15 

 

 

 

 

(HOME)  (currency converter) (terms & conditions)  

Copyright 2012 Antique & Scientific Instruments U.K.

last updated 30/10/2013